Products

We are committed to providing one-stop service for steel pipe products to customers around the world.

Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
BackYou are in :  Home  >  Products  >  Special Steel  >  4150 Alloy Steel
Product Gategory
Factory
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe
  • Carbon seamless steel pipe,A53 steel pipe,Alloy steel pipe

4150 Alloy Steel

Category : Special Steel

Standard : ASTM A29 /ASTM A322

size :

Diameter :80 to 600 mm

Length : 1000 to 9000 mm

  • Description
  • Specification
  • Standard
  • Process
  • Packing

4150 steel also sold under the name AISI/SAE 4150, is a medium/high-carbon alloy steel that contains chromium and molybdenum. 4150 steel is known for its increased hardenability and mechanical properties. The machinability of 4150 steel bar is better in the annealed form.  This tough steel alloy offers uniform strength, wear resistance, and great hardness. It is important to note that Alloy Steel 4150 must be heat-treated to be suitable for machining. The weldability of Alloy Steel 4150 is high and can be achieved through most commercial methods. The finest of grain size relates directly with the temperature of forging.


Chemical composition

C

Si

Mn

P

S

Cr

Mo

0.48-0.53

0.15-1.35

0.75-1.00

max 0.035

max0.040

0.8-1.1

0.15-0.25


Mechanical Properties

Diameter (mm)

≤16

16-40

40-100

100-160

160-250

Yiled Strength
(MPa)

≥900

≥780

≥700

≥650

≥550

Tensile Strength
(MPa)

1100-1300

1100-1300

1000-1200

900-1100

850-1050

Elongation(%)

≥9

≥10

≥12

≥13

≥13

Impact(J)

≥30

≥30

≥30

≥30

≥30

Hardness(HB)

331-380

298-359

271-331

253-298

240-286



Application
Alloy Steel 4150 is used in the aerospace, defense, oil and gas, and automotive industries for products such as:
Shafts
Valves
Sprockets
Aerospace parts
Axles
Spindles
Forged gears

HEAT TREATMENT
Soft Annealing
Heat the steel  to 680-720°C uniformly and slowly
hold suitable time for the steel to be thoroughly heated
cool slowly in furnace
maximum Brinell hardness of 248.
Normalizing: 840-860°C,cool in air
Hardening:820 – 860°C,oil quench
Tempering:540-680°C,cool in air
 
HARDNESS AFTER HEAT TREATMENT
Annealed at 815°C: 197 HB
Normalized at 870°C: 321 HB
Oil quenched, fine grained, tempered at 205°C: 530 HB
Oil quenched, fine grained, tempered at 315°C: 495 HB
Oil quenched, fine grained, tempered at 425°C: 440 HB
Oil quenched, fine grained, tempered at 540°C: 370 HB
Oil quenched, fine grained, tempered at 650°C: 290 HB
 
Forming Option
1 Hot rolling process
2 Hot Forging: Electro-hydraulic; High-speed-hydraulic; Oil-hydraulic; Precision-forging
 
Heat-treatment Option
1 +A: Annealed (full/soft/spheroidizing)
2 +N: Normalized
3 +NT: Normalized and tempered
4 +QT: Quenched and tempered (water/oil)
 
Surface Option
1 Black Surface
2 Grounded: Bright but rough ; Not precision
3 Machining for plate: Bright and precision; Little turning scar
4 Peeled/Turned: Bright and precision; Little turning scar
5 Polished: Very Bright and precision size; Not turning scar
 
Other Services
1 Cutting: Small pieces
2 CNC Machine: Produce as your drawing
3 Package: Bare/Nylon/Canvas/Wooden
4 Payment:T/T, L/C, O/A(request credit)
5 Transport:FOB/CFR/CIF/DDU/DDP (train/ship/Air)
 
Mill test certificate
EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

Inquiry Online

Recommended Products